I'm not great at his but I'll give it a try. Here's the opening shot. Looking at the shadows on the rocks and the guard rail I'm thinking the sun is fairly high and slightly to the left in the picture. It's not lower on the horizon right? (I'm screen shooting from Third Phase of the Moon's version of this video as it is eaisier to work with):
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Here is our Lego craft with the shadows in about the same location:
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But as the Lego craft leaves the frame, the shadow is over here:
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It's not slightly under the craft like the rest of the shadows and it looks added.
I'm all for dudes in bat suits, but right now I still think hoax.
Edit: was busy looking at this and didn't notice that Z. W. Wolf and Jackfrosttv had posted.